I just have to complain about this, because it's really bugging me. When Val and Kelly did Flamenco, the judges got down on them because they said it wasn't really a Flamenco. But this was right after Emmett and Cheryl did a Lindy Hop that didn't have a single thing in it I recognized as Lindy Hop. They were instead doing what Lindy Hoppers call "The Swing," which refers to any dance number by people who clearly have no idea what Lindy Hop is.
It would be one thing if the judges just gave a pass to everyone for everything, but they don't. Len complained bitterly about Shaun and Derek's tribal Samba and gave them a low score because it wasn't a true Samba. But even though he said he would have liked to see more Lindy in the Cheryl/Emmett number (I would have liked to see *any* Lindy in it), he gave them a higher score, even though the Shaun/Derek number was a much better number.
I feel that the judges know less about Lindy than any single other dance ever done on DWTS. I wish they would watch a few good Lindy numbers and at least develop some vague idea of what the dance looks like before they judge it again. But I'm sure they won't. Lindy gets no respect in the ballroom dance world where they're from.